Means for making ice cream in an electric refrigerator



T 0 I. n e V n 1 Feb. 21, 1933. A. R. GIFFORD MEANS FOR MAKING. ICECREAM IN AN ELECTRIC REFRIGERATOR .Filed Sept. 23, 1931, 3 SheetsSheet lcoo -, 4 n1 1 w z /I Home y Feb. 21, 1933. v GIFFQRD 1,898,724

MEANS FOR MAKING ICE CREAM IN AN ELECTRIC REFRIGERATOR Filed Sept. 23,1931 s Sheets-Sheet 2 III I/ Inventor J E. f'f'jord' A. R. GIFFORD Feb.21, 1933.

MEANS FOR MAKING ICE CREAM IN AN ELECTRIC REFRIGERATCR Filed Sept. 25,1931 3 Sheets-Sheet 5 Jil- Inventor Patented F 21, F1933 UNITED STATESPATENT OFFICE ALBERT R. GIFFORD, OF IDS ANGELES, CALIFORNIA MEANS FORMAKING ICE CREAM IN AN ELECTRIC REFRIGERATOR Application filed September23, 1931. Serial No. 564,677.

This invention relates to means for making ice cream in an electricrefrigerator, the general object of the invention bemg to provide meansfor operating an ice cream freezer by the motor of the refrigerator soas to M1- lize the motor of-the refrigerator for turn ing the freezer.

invention also consists in certain other features of construction and inthe combination and arrangement of the several parts to be hereinafterfully described, illustrated in the accompanying drawings andspecifically pointed out in the appended claims.

In describing the invention in detail, reference be had to the accompanyng drawings wherein like characters denote l1ke or corresponding partsthroughout the several views, and in which Figure 1 is a verticalsectional view through an electric refrigerator showing the invention inuse.

Fig. 2 is a front fragmentary View with the doors of the refrigeratoropen.

Fig. 3 is a transverse sectional view through the motor chamber of therefrigerator.

Fig. 4 is a view of the ice cream freezer.

Fig. 5 is a sectional detail view showing the joints between the twovertical shafts.

Fig. 6 is a view of the coupling between the lower end of .the bottomshaft and the flexible shaft.

Fig. 7 is a diagrammatic view of the circuit.

Fig. 8 is a sectional view showing the means for connecting the can tothe sectional shaft.

In these drawings, the letter A indicates the refrigerator which isformed with a lower chamber 1 containing the motor M which is seated ona resiliently supported base 2 in the usual manner.

In carrying out my invention, I place a freezer 3 in a drawer 4 in therefrigerating chamber of the refrigerator, and a dasher 5 is located inthe freezer and its shaft 6 is supported against rotary movement. A stubshaft 7 recess in the bottom of the can or freezer so movement of theshaft willbe imparted to the drawer containing has a square upper endfitting in 'a a packing gland 8 lower end of this shaft 10 is detachablyeonnected to a stub shaft 13 located in a bushing 14 in the bottom ofthe refrigerating chamber, and a flexible shaft 15 is connected to thelower end of the stub shaft by a screw 16. The lower end of the flexiblea stub shaft 17 supported in the bearings 18 carried by a base 19 whichis attached to the base 2 supported by the springs 20.

A worm gear 21 is fastened to the shaft 17 and mesheswith the worm 22carried by the bearings 23 on the base 19, and the clutch 24 connectsthe worm shaft with the shaft 25 of the motor M. A forked lever 26 isprovided for shifting the clutch, and if desired, an overload switch 27may be located adjacent the outer end of the lever 26 to operate thesame automatically, to release the clutch when an overload takes place.

This lever can be operated b hand when desired. As shown in Fig. 7 t ecircuit for the motor is the same as that used in electricrefrigerators, except the overload switch is connected with saidcircuit.

It will thus be seen that when the clutch is in operative position, themotor M will operate the freezer through the shafting and gearing shown,and when desired ice and salt can be placed in the drawer around thefreezer though if the ice cream is not to be frozen quickly, the ice andsalt need not be used and the low temperature of the refrigeratingchamber may be utilized for freezing the ice cream, though it ispreferable to use the ice and this may be secured from the ice pan ofthe refrigerator.

As shown in Figs. 1 and 2 the drawer is placed in a chamber 28 locatedin the refrigerator chamber, and surrounded by the coils 29.

From the foregoing'it will be seen that I have made use of the motor ofthe refrigershaft is connected to this chamber may be ator for operatingthe ice cream freezer and when the parts are not in use, the shafts 9and 10 can be removed, and the clutch moved to inoperative position sothat the motor will not drive the gearing. v

It is thought from the foregoing descrip-v tion that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be 19 made in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claims.

Having thus described my invention what I claim as new is 1. Incombination with an electric refrigerator including its motor, a freezerlocated in the refrigerating chamber thereof, means for operating thefreezer from the motor,

said means consisting of a pair of shafts, gears connecting the shaftstogether, clutch means for connecting one of the shafts to the motorshaft, a flexible shaft connected to the other one of said shafts, and ashafting connecting the flexible shaft with the freezer.

2. In combination with an electric refrigerator including its motor, afreezer located in the refrigerating chamber thereof, means foroperating the freezer from the motor, said means consisting of a pair ofshafts, gears connecting the shafts together, clutch means forconnecting one of the shafts to the motor shaft, a flexible shaftconnected to the other one of said shafts, a shafting connecting theflexible shaft with the freezer, a drawer in the refrigerating chamberin which the freezer is placed, a casing surrounding the drawer andcoils surrounding the casing.

3. In combination with an electric refrigerator including its motor, afreezer located in the refrigerating chamber thereof and including a cansupported for rotary movement and a paddle member located in the can,and means for rotating the can from the motor.

In testimony whereof I afilx my signature.

0 ALBERT R. GIFFORD.

